import axios from 'axios'
import { MessageBox, Message } from 'element-ui'
import store from '@/store'
import { getToken } from '@/utils/auth'
import { get } from 'js-cookie'
import qs from 'qs'


// create an axios instance
const service = axios.create({
  baseURL: process.env.VUE_APP_BASE_API_PRO, // url = base url + request url
  // withCredentials: true, // send cookies when cross-domain requests
  timeout: 5000 // request timeout
})

// request interceptor
service.interceptors.request.use(
  config => {
    // do something before request is sent

    if (store.getters.token) {
      // let each request carry token
      // ['X-Token'] is a custom headers key
      // please modify it according to the actual situation
      config.headers['X-Token'] = getToken()
    }
    return config
  },
  error => {
    // do something with request error
    console.log(error) // for debug
    return Promise.reject(error)
  }
)

// response interceptor
service.interceptors.response.use(
  /**
   * If you want to get http information such as headers or status
   * Please return  response => response
  */

  /**
   * Determine the request status by custom code
   * Here is just an example
   * You can also judge the status by HTTP Status Code
   */
  response => {
    const res = response.data

    // if the custom code is not 20000, it is judged as an error.
    if (res.code !== 200) {
      Message({
        message: res.msg,
        type: 'error',
        duration: 5 * 1000
      })

      // 50008: Illegal token; 50012: Other clients logged in; 50014: Token expired;
      if (res.code === 50008 || res.code === 50012 || res.code === 50014) {
        // to re-login
        MessageBox.confirm('You have been logged out, you can cancel to stay on this page, or log in again', 'Confirm logout', {
          confirmButtonText: 'Re-Login',
          cancelButtonText: 'Cancel',
          type: 'warning'
        }).then(() => {
          store.dispatch('user/resetToken').then(() => {
            location.reload()
          })
        })
      }
      return Promise.reject(new Error(res.msg))
    } else {
      return res
    }
  },
  error => {
    console.log('err' + error) // for debug
    Message({
      message: error.message,
      type: 'error',
      duration: 5 * 1000
    })
    return Promise.reject(error)
  }
)
const http={
    post(url,params){
        return service.post(url,params,{
            transformRequest:[(params)=>{
                return JSON.stringify(params)
            }],
            headers:{
                'Content-Type' : 'application/json'
            }
        })
    },
    put(url,params){
        return service.put(url,params,{
            transformRequest:[(params)=>{
                return JSON.stringify(params)
            }],
            headers:{
                'Content-Type' : 'application/json'
            }
        })
    },
    get(url,params){
        return service.get(url,{
            params:params,
            paramsSerializer:(params)=>{
                return qs.stringify(params)
            }
        })
    },
    getRestApi(url,params){
        let _params
        if(Object.is(params,undefined||null)){
            _params=''
        }else{
            _params='/'
            for(const key in params){
                console.log(key)
                console.log(params[key]);
                //eslint-disable-next-line no-prototype-builtins
                if(params.hasOwnProperty(key)&&params[key]!==null&params[key]!==''){
                    _params += `${params[key]}/`
                }
                //
                _params= _params.substring(0,_params.length-1)
            }
            console.log(_params);
            if(_params){
                return service.get(`${url}${_params}`)
            }else{
                return service.get(url)
            }
        }
    },
    delete(url,params){
        let _params
        if(Object.is(params,undefined||null)){
            _params=''
        }else{
            _params='/'
            //eslint-disable-next-line no-prototype-builtins
            for(const key in params){
                if(params.hasOwnProperty(key)&&params[key]!==null&params[key]!==''){
                    _params += `${params[key]}/`
                }
            }
            _params= _params.substring(0,_params.length-1)
        }
        if(_params){
            return service.delete(`${url}${_params}`).catch(error=>{
                return Promise.reject(error)
            })
        }else{
            return service.delete(url).catch(error=>{
                return Promise.reject(error)
            })
        }
    },
    upload(url,params){
        return service.post(url,params,{
            headers:{
                'Content-Type' : 'multipart/form-data'
            }
        })
    }
}
export default http
